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Western music theory library in C

130 starsC

A small, simple music theory library in C99

by lowsun·Feb 19, 2026·57 points·18 comments

AI Analysis

●●SolidCozyNiche Gem

Music theory in C with enharmonic correctness—tiny, zero-alloc, 100% tested.

Strengths
  • Enharmonically correct note resolution (Bb vs A#) is a subtle, non-obvious constraint that shows domain knowledge.
  • No internal memory allocation makes it embeddable in resource-constrained contexts; caller controls all allocations.
  • 100% test coverage + clear CMake integration + documented API suggests genuine care for usability.
Weaknesses
  • Niche domain: music theory libraries are not a pressing pain point for most C developers.
  • No demo or REPL; you must compile C code to see results—friction for casual exploration.
Target Audience

C developers, music software builders, embedded systems programmers

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music-theory (npm) · Essentia (C++ audio/music DSP)

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